<html>
    <head>
        <title>form1</title>
        <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
    </head>

    <body>
    <form action="/vali?ext=ooi" method="post">
        年级：<input name="ext"  /><br/>
        专业：<input name="major"  /><br/>
        <input Type="submit" value="login "/>
    </body>
</html>